For the January 2002 daily values of the Dow Jones Industrial Average (Table 2.6.8 in Chapter 2):
a. Find the mean net change.
b. Find the median net change.
c. Find the five-number summary for net change.
d. Draw the box plot for net change.
e. Find the mean percent change.
f. Find the median percent change.
g. Find the five-number summary for percent change.
h. Draw the box plot for percent change.